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differences often exist between the skulls in one and tbe 
same race than between the skulls of different races on 
which stress is laid. In the species around us skulls of 
the wild boar and of the domestic swine differ as strik- 
ingly as do the skulls of the typical African and European. 
In the fierce bloodhound, trained to harry down the helpless 
slave, and the noble dog of St. Bernard, with its life-saving 
instincts, we see varieties in the same species as great as 
any that manifest themselves between any existing races of 
men, however diverse. In reference to structural and other 
differences between different varieties of man, we may say, 
with the Duke of Argyll, that “ they are comparatively trifling, 
and that it may safely be affirmed that all the efforts of 
anatomists and physiologists, who have been most determined 
to magnify every point of variation, have utterly failed to 
render it impossible or improbable that all men have had a 
common ancestor.” 
Happily we can appeal to scientific men of the very highest 
attainments for more than a possibility, or even a probability, 
that the Scripture reply is on this point the Word of Truth. 
They declare that the bones in the skeletons of all men are the 
same in number, arrangement, and disposition ; that the blood- 
vessels are the same in distribution ; that the muscles — thou- 
sands in number — are the same in all ; that the brain, the 
spinal marrow, the nervous system are the same in all ; that 
the processes of respiration, digestion, secretion, and propagation 
are the same in all; and that a system of anatomy, compiled 
in Europe from an examination of the bodies of Europeans 
only, would be as applicable to Asia, Africa, America, and 
Australia, as in Europe itself, and that all mankind are of 
one and the same species. Delitzsch has well summed up 
their conclusions in the following words : <c That the races 
of men are not species of one genus, but varieties of one species, 
is confirmed by the agreement in the physiological and patho- 
logical phenomena in them all, by the similarity in the anato- 
mical structure, in the fundamental powers and traits of the 
mind, in the limits to the duration of life, in the normal tem- 
perature of the body, in the average rate of pulsation, in the 
duration of pregnancy, and in the unrestricted fruitfulness of 
marriages between the different races. ” The words with which 
Prichard — no ordinary man, for Dr. W. B. Carpenter says of 
him, Prichard was a physiologist among physiologists, a 
philologist among philologists, a scholar among scholars ” 
— -the words with which he concludes his great work on “ The 
Natural History of Man ” will be in the memory of all. 
Having, according to the strict rule of scientific scrutiny, i 
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